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View Poll Results: What temperature range is necessary for a climate to have 4 seasons?
0-5C 1 3.70%
5-10C 4 14.81%
10-15C 6 22.22%
15-20C 5 18.52%
20-25C 6 22.22%
greater than 25C 5 18.52%
Voters: 27. You may not vote on this poll

 
 
Old 08-16-2013, 04:11 PM
nei nei won $500 in our forum's Most Engaging Poster Contest - Thirteenth Edition (Jan-Feb 2015). 

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Location: Western Massachusetts
45,751 posts, read 39,686,242 times
Reputation: 14671

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Quote:
Originally Posted by Ariete View Post
It's an average map. Sunless days can have a UV index of 2, which lowers the monthly average. And the UV cap for a location is quite low for northern and central mid latitudes.
It's partially a July sunshine map, at least if you compare similar latitudes.
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Old 08-16-2013, 04:51 PM
 
Location: Finland
24,268 posts, read 17,549,226 times
Reputation: 11103
Quote:
Originally Posted by nei View Post
It's partially a July sunshine map, at least if you compare similar latitudes.
Sorry, i missed your point. I don't understand what you are trying to say.

Here, the average UV is:

I 0
II 1
III 1
IV 3
V 4
VI 5
VII 5
VIII 4
IX 3
X 1
XI 0
XII 0
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Old 08-16-2013, 07:05 PM
 
Location: Top of the South, NZ
15,913 posts, read 12,471,645 times
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Quote:
Originally Posted by chicagogeorge View Post
Here is a list of cities with average maximum UV index by month




Uploaded with ImageShack.us
I don't think that shows actual recorded UVI, so much as predicted UV using latitude alone.

Last edited by Joe90; 08-16-2013 at 07:50 PM..
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Old 08-16-2013, 07:06 PM
nei nei won $500 in our forum's Most Engaging Poster Contest - Thirteenth Edition (Jan-Feb 2015). 

Over $104,000 in prizes has already been given out to active posters on our forum and additional contests are planned
 
Location: Western Massachusetts
45,751 posts, read 39,686,242 times
Reputation: 14671
Quote:
Originally Posted by Ariete View Post
Sorry, i missed your point. I don't understand what you are trying to say.
What I meant is the US July average UV map, is partly just showing sunshine differences in the US rather than showing where UV will be stronger when the sun is out. That's why the Plains has a higher UV index.
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Old 08-17-2013, 03:37 AM
 
Location: Finland
24,268 posts, read 17,549,226 times
Reputation: 11103
Quote:
Originally Posted by nei View Post
What I meant is the US July average UV map, is partly just showing sunshine differences in the US rather than showing where UV will be stronger when the sun is out. That's why the Plains has a higher UV index.
Ok, right. What is the possible max for MA, NY, NJ, PA with surroundings?
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Old 08-17-2013, 08:24 AM
 
21,931 posts, read 11,597,975 times
Reputation: 2858
Here is Chicago's UV Index for 2012 (which had a sunny summer)




compared to 2009 (which was the cloudiest summer on record)



Just to compare:

Here is NYC in 2012




and 2009




compare to Las Vegas





and now oceanic Seattle

2012




2009



Climate Prediction Center - Stratosphere: UV Index: Annual Time Series

Last edited by chicagogeorge; 08-17-2013 at 08:38 AM..
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Old 08-17-2013, 10:32 AM
 
Location: Seattle
1,248 posts, read 963,772 times
Reputation: 443
There's a difference between a "traditional four season climate" (cold, snowy winters, mild springs and falls, and hot summers) and a climate having a winter, spring, summer, and fall. For example, you can say that Seattle has a winter, spring, summer, and fall, but it is not a true "four season climate".
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